APA

U.S. Environmental Protection Agency. Office of Administration and Resources Management, . (1992). NDPD operational policies manual. Washington: Office of Emergency & Remedial Response.

Chicago

U.S. Environmental Protection Agency. Office of Administration and Resources Management, . 1992. NDPD operational policies manual. Washington: Office of Emergency & Remedial Response.

Harvard

U.S. Environmental Protection Agency. Office of Administration and Resources Management, . (1992). NDPD operational policies manual. Washington: Office of Emergency & Remedial Response.

MLA

U.S. Environmental Protection Agency. Office of Administration and Resources Management, . NDPD operational policies manual. Washington: Office of Emergency & Remedial Response. 1992.